4. Electric heating
  5. Heating devices
  6. Combined with container, enclosure, or support for material...

Robert Koehl

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Apparatus and method for joining layers of materials

Metal fusion bonding – Process – Using high frequency vibratory energy
Reexamination Certificate

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Domestic electric cooking oven

Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent

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Profile ID: LFUS-PAI-P-1954435

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